Which is better for aluminum alloy trailer and traditional steel trailer?

Since the aluminum trailer was launched in the domestic market on the day, it has always been in an embarrassing situation of no one's attention. Although the manufacturer has been touting the advantages of lightweight, due to high prices and users' concerns about strength, the aluminum alloy trailer market share is very small, accounting for only 0.02% of the entire trailer market. Even after the introduction of GB1589, the most stringent regulation standard in history, trailer axle the aluminum alloy trailer trailer is still rarely interested.

Let's start with the advantages of aluminum trailer.

Compared with steel trailer, aluminum trailer is the most obvious light weight, the use of aluminum than steel light this basic physical principle, to achieve the lightweight trailer, which is also the biggest selling point of aluminum trailer sellers. But in fact, the former only lost an average of 2-3 tons of empty car weight than the latter. So, how much value does this lost weight create for the owner?

If it is charged by weight, we assume that the standard load is 49 tons, the head + cargo hanging 14 tons, and the cargo is 35 tons, and the aluminum alloy trailer can get 6%-9% more income by a single trip of 2-3 tons. If you go on the highway, the toll of 2-3 tons is not less, and the sum of these two items is very attractive.

It is a different matter if the goods shipped are charged by volume. Experienced carers know that the more cargo a car can carry at high speeds, the less weight has an impact on fuel consumption. For example, a 15-ton heavy truck including the trailer, the fuel consumption of 100 kilometers is 18 empty, but the fuel consumption of 49 tons of 100 kilometers may be 28. This is because the main resistance of large trucks driving at high speed is not from the friction brought by weight, but from the wind resistance, which can account for more than 50%-70% of the resistance at different speeds.

However, when driving at low speeds, especially when starting frequently, the influence of wind resistance is reduced, and the influence of weight on fuel consumption will be more obvious. Therefore, the high speed is more, and the impact of reducing two or three tons is not much; At low speeds, you get less fuel for every weight.

Second, compared with steel, aluminum trailer after scrap recycling price is higher. According to the price of 10,000 yuan per ton of waste aluminum, a trailer aluminum coat can obtain 20-30,000 yuan of recycling income, which is 10,000 to 20,000 yuan more than the steel trailer.

Let's talk about the disadvantages of aluminum trailer.

The first is price. Usually, the price of an aluminum alloy trailer is nearly 100,000 yuan higher than that of a steel trailer, and how long does it take to return the cost? Here we can give an example: In the comparison of new energy passenger cars (here is talking about family cars, SUVs, etc.) with traditional fuel passenger cars, spending tens of thousands of yuan or even hundreds of thousands of yuan to buy a car, can it really be saved in fuel consumption? In fact, trailer axle according to experts, every year to 30,000 kilometers in order to reach the critical value, less than this mileage or traditional fuel vehicles suitable.

The same is true of the input-output income of aluminum trailer. However, the standard of passenger cars is very unified, and commercial vehicles involve more complex factors such as freight, mileage, and load capacity, and it is impossible to accurately calculate the critical value, which must be calculated according to their own business practice.

Then there is the comparison of durability. Since steel can be widely used in military, ships, automobiles, construction and other fields, it shows that its robustness and durability is very reliable. Although there are examples of aerospace vehicles, tank turrets, ships have also been widely used or tried to use aluminum alloy to prove its robustness.

However, it should be stressed that if the goods transported are coal, iron, building materials and what will inevitably bump, aluminum trailer is indeed "not resistant to manufacture". However, if it is standardized goods, light dumping goods and other goods with less impact trailer axle on the cargo, the durability disadvantage of aluminum alloy is not so obvious.

Moreover, the longer the service life of the steel trailer, the more serious the corrosion of the sun and rain, and the aluminum alloy basically does not have this problem. If used properly, in the second half of the life, the durability of the aluminum trailer may not be much worse than that of steel.